I am trying to simulate (an existing) 2,4 GHz horn antenna which has a coax (SMA) feed. Since I am a newbie to electromagnetic simulation I'm in a little struggle. I used the horn antenna tutorial (with rect. waveguide port) and tried to adapt it to my needs. I tried to use a lumped port for excitation. Please do not blame me for my coding style & structure. Furthermore please notice that the geometry is total nonsense at the moment. I am just trying to get the lumped element port to work in a horn antenna.
Maybe somebody can point me in the right direction or tell me if I am heading in the totally wrong direction.
Problems & symptoms:
Code: Select all
VTKPrimitives::AddCube: Warning, can't draw a Point Box... skipping
- Where does my warning come from (mesh/port problem)?
- How is the lumped port supposed to be used? Currently the port "connects" the metal of the horn to the metal of the feed. How long is the lumped port supposed to be? Should it just connect the two metals (as shown in the patch antenna tutorial) or be as long as the metallic feed of the antenna?
- Of course, I am interested in simulating the SMA-connector a close as possible but that seems to be a quite difficult topic. Is the "style" I use the lumped port correct? Any suggestions for a more appropriate feed structure?
- Is it required to place the lumped port directly on the mesh or is it sufficient to have the mesh penetrating only the connected metal of the feed?
Thanks for your help,